同義詞是pandemy，pandemia，中文意思是大流行病
大流行病通常主要影響某些特定年齡組。Pandemics usually have a concentrated adverse impact in specific age groups.
歷史上第一次，國際社會可實時目睹大流行病的發生，勾勒其演進軌跡。
For the first time in history， the international community could watch a pandemic unfold， and chart its evolution， in real time.
